{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Atazanavir%2FRitonavir", "query": { "intervention": "Atazanavir/Ritonavir" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 107, "total_pages": 11, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Atazanavir%2FRitonavir&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-29T10:44:49.041Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT00118898", "title": "Efavirenz or Atazanavir/Ritonavir Given With Emtricitabine/Tenofovir Disoproxil Fumarate or Abacavir/Lamivudine in HIV Infected Treatment-Naive Adults", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "Abacavir/Lamivudine", "type": "DRUG" }, { "name": "Atazanavir", "type": "DRUG" }, { "name": "Efavirenz", "type": "DRUG" }, { "name": "Emtricitabine/Tenofovir disoproxil fumarate", "type": "DRUG" }, { "name": "Ritonavir", "type": "DRUG" }, { "name": "Abacavir/Lamivudine placebo", "type": "DRUG" }, { "name": "Emtricitabine/Tenofovir disoproxil fumarate placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": "16 Years", "maximum_age": null, "sex": "ALL", "summary": "16 Years and older" }, "enrollment_count": 1864, "start_date": "2005-09", "completion_date": "2009-11", "has_results": true, "last_update_posted_date": "2018-10-12", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 51, "location_summary": "Los Angeles, California • Palo Alto, California • San Diego, California + 30 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Palo Alto", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00118898" }, { "nct_id": "NCT00384904", "title": "Drug Interaction Study of Famotidine and Atazanavir With Ritonavir in HIV-Infected Patients", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "Atazanavir/Ritonavir", "type": "DRUG" }, { "name": "Atazanavir/Ritonavir + Famotidine", "type": "DRUG" }, { "name": "Atazanavir/Ritonavir + Tenofovir Disproxil Fumrarate + Famotidine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Bristol-Myers Squibb", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 40, "start_date": "2006-12", "completion_date": "2007-12", "has_results": false, "last_update_posted_date": "2010-02-05", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 3, "location_summary": "Voorhees Township, New Jersey • Chapel Hill, North Carolina • Philadelphia, Pennsylvania", "locations": [ { "city": "Voorhees Township", "state": "New Jersey" }, { "city": "Chapel Hill", "state": "North Carolina" }, { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT00384904" }, { "nct_id": "NCT00646776", "title": "Drug Interaction Study", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Antivirals/HIV" ], "interventions": [ { "name": "Rifabutin", "type": "DRUG" }, { "name": "Rifabutin + Atazanavir + Ritonavir", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Bristol-Myers Squibb", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "50 Years", "sex": "ALL", "summary": "18 Years to 50 Years" }, "enrollment_count": 85, "start_date": "2008-04", "completion_date": "2008-08", "has_results": true, "last_update_posted_date": "2013-01-31", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 1, "location_summary": "Hamilton, New Jersey", "locations": [ { "city": "Hamilton", "state": "New Jersey" } ], "official_url": "https://clinicaltrials.gov/study/NCT00646776" }, { "nct_id": "NCT02556268", "title": "Interaction With HIV Antiretroviral Agents", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "HIV-DDI" ], "interventions": [ { "name": "Riociguat (Adempas, BAY 63-2521)", "type": "DRUG" }, { "name": "ATRIPLA", "type": "DRUG" }, { "name": "COMPLERA", "type": "DRUG" }, { "name": "STRIBILD", "type": "DRUG" }, { "name": "TRIUMEQ", "type": "DRUG" }, { "name": "Antiretroviral protease inhibitor", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Bayer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 40, "start_date": "2016-02-23", "completion_date": "2016-12-07", "has_results": false, "last_update_posted_date": "2017-12-06", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 2, "location_summary": "Orlando, Florida • Boston, Massachusetts", "locations": [ { "city": "Orlando", "state": "Florida" }, { "city": "Boston", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT02556268" }, { "nct_id": "NCT01591850", "title": "A Drug-Drug Interaction Study of Ketoconazole, Rifampicin and Ritonavir-Boosted Atazanavir With Single-Dose RO5093151 in Healthy Volunteers", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Healthy Volunteer" ], "interventions": [ { "name": "RO5093151", "type": "DRUG" }, { "name": "atazanavir", "type": "DRUG" }, { "name": "ketoconazole", "type": "DRUG" }, { "name": "rifampicin", "type": "DRUG" }, { "name": "ritonavir", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Hoffmann-La Roche", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 51, "start_date": "2011-09", "completion_date": "2011-11", "has_results": false, "last_update_posted_date": "2016-11-02", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 1, "location_summary": "Merritt Island, Florida", "locations": [ { "city": "Merritt Island", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT01591850" }, { "nct_id": "NCT00878306", "title": "Disulfiram Interactions With HIV Medications: Clinical Implications", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "HIV Infections", "Drug Abuse" ], "interventions": [ { "name": "Disulfiram", "type": "DRUG" }, { "name": "Disulfiram + Efavirenz", "type": "DRUG" }, { "name": "Disulfiram + Atazanavir", "type": "DRUG" }, { "name": "Disulfiram + Ritonavir", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of California, San Francisco", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 40, "start_date": "2008-11", "completion_date": "2013-04", "has_results": false, "last_update_posted_date": "2014-05-06", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 1, "location_summary": "San Francisco, California", "locations": [ { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00878306" }, { "nct_id": "NCT00260078", "title": "Blood Levels of Anti-HIV Drugs Used in Combination Regimens in HIV Infected Children", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1", "PHASE2" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "Atazanavir", "type": "DRUG" }, { "name": "Darunavir", "type": "DRUG" }, { "name": "Efavirenz", "type": "DRUG" }, { "name": "Nevirapine", "type": "DRUG" }, { "name": "Ritonavir", "type": "DRUG" }, { "name": "Tenofovir disoproxil fumarate", "type": "DRUG" }, { "name": "Pharmacokinetic Study", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "PROCEDURE" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "8 Years", "maximum_age": "17 Years", "sex": "ALL", "summary": "8 Years to 17 Years" }, "enrollment_count": 75, "start_date": "2006-02", "completion_date": "2009-04", "has_results": false, "last_update_posted_date": "2021-11-09", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 21, "location_summary": "Alhambra, California • La Jolla, California • Long Beach, California + 16 more", "locations": [ { "city": "Alhambra", "state": "California" }, { "city": "La Jolla", "state": "California" }, { "city": "Long Beach", "state": "California" }, { "city": "Torrance", "state": "California" }, { "city": "Hartford", "state": "Connecticut" } ], "official_url": "https://clinicaltrials.gov/study/NCT00260078" }, { "nct_id": "NCT00756730", "title": "Lopinavir/r or Fosamprenavir/r Switch to Atazanavir/r or Darunavir/r", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "ATV/r", "type": "DRUG" }, { "name": "DRV/r", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Community Research Initiative of New England", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 49, "start_date": "2008-09", "completion_date": "2011-06", "has_results": true, "last_update_posted_date": "2017-08-21", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 11, "location_summary": "Phoenix, Arizona • Los Angeles, California • Orlando, Florida + 7 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Los Angeles", "state": "California" }, { "city": "Orlando", "state": "Florida" }, { "city": "Boston", "state": "Massachusetts" }, { "city": "Springfield", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT00756730" }, { "nct_id": "NCT00827112", "title": "A Pilot Study Of A Novel Treatment Regimen, Maraviroc + Ritonavir Boosted Atazanavir, In Treatment Naive HIV-Infected Patients", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Human Immunodeficiency Virus-1" ], "interventions": [ { "name": "maraviroc", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "ViiV Healthcare", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "16 Years", "maximum_age": null, "sex": "ALL", "summary": "16 Years and older" }, "enrollment_count": 129, "start_date": "2009-03", "completion_date": "2011-07", "has_results": true, "last_update_posted_date": "2012-06-15", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 27, "location_summary": "Los Angeles, California • Norwalk, Connecticut • Washington D.C., District of Columbia + 16 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Norwalk", "state": "Connecticut" } ], "official_url": "https://clinicaltrials.gov/study/NCT00827112" }, { "nct_id": "NCT00666055", "title": "Sex, Aging and Antiretroviral Pharmacokinetics", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "ARV regimen chosen by treating physician", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Kristine Patterson, MD", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "19 Years", "maximum_age": null, "sex": "FEMALE", "summary": "19 Years and older · Female only" }, "enrollment_count": 11, "start_date": "2008-03", "completion_date": "2012-05", "has_results": false, "last_update_posted_date": "2012-09-20", "last_synced_at": "2026-09-29T10:44:49.041Z", "location_count": 1, "location_summary": "Chapel Hill, North Carolina", "locations": [ { "city": "Chapel Hill", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT00666055" } ] }